Table of Contents
The program for addition of two matrices uses simple arithmetic operations on two given matrices and prints the output.
It is written in NetBeans 8.2 installed on a windows 7 64-bit system. You may also need to install the Java SDK version suitable for NetBeans 8.2.
It is a simple demonstration of arithmetic operations and it is intended for beginner level learner of Java programming.
Problem Definition
We reads two matrices – matrix A and matrix B and adds each corresponding element of the given matrix. The result of this addition is stored in a third matrix C.
For example, let A, B, and C be 3 x 3 matrices. Then
In the above figure, each element from first row of A is added to each element of the B and the sum is stored in the matrix C.
Flowchart
Program Code
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/**
*
* @author Admin
*/
public class Matrixaddition {
int a[][] = {{1,2,3},{2,3,5},{4,2,1}};
int b[][] = {{3,2,2},{0,1,1},{1,1,7}};
int c[][] = new int [3][3];
void addmatrix(){
int i,j;
for(i=0;i< 3;i++){
for(j=0;j < 3;j++){
c[i][j] = a[i][j] + b[i][j];
}
}
}
void display(){
int i,j;
for(i=0;i < 3;i++){
for(j=0;j < 3;j++){
System.out.print (c[i][j] + " ");
}
System.out.println("\n");
}
}
public static void main(String[] args)
{
Matrixaddition obj = new Matrixaddition();
obj.addmatrix();
obj.display();
}
}Output
4 4 5
2 4 6
5 3 8